[Qmulus]

First off, try cycling the connectors that go between the front and back of the cluster. I don't have one of those clusters here right now, but there are two connectors that slide to disconnect the front part with the gauges and knobs from the rear half with the circuit board. This is how you access the bulbs for the gauges. Sometimes you can have a bad connection there, especially on the ground connections. I am sure there is a link somewhere here to how to get at the bulbs...

I will send you a PM as well.